Vulnerabilities > CVE-2021-29447 - XXE vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 11 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
References
- https://wordpress.org/news/category/security/
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
- https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
- https://www.debian.org/security/2021/dsa-4896
- http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html
- http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html
- https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/